/* ===== 机器人知识库 - 全局样式 ===== */

/* 重置与基础 */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', Roboto, Arial, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh; color: #fff;
}

/* 容器 */
.container { max-width: 900px; margin: 0 auto; padding: 40px 20px; }

/* 头部 */
header { margin-bottom: 40px; }
.back-link {
    display: inline-block; color: #00d4ff; text-decoration: none;
    margin-bottom: 20px; font-size: 0.9rem; transition: color 0.3s;
}
.back-link:hover { color: #7b2cbf; }
h1 { font-size: 2rem; margin-bottom: 10px; color: #fff; }
.subtitle { color: #888; font-size: 1rem; }

/* 面包屑导航 */
.breadcrumb {
    margin-bottom: 25px; font-size: 0.85rem; color: #666;
}
.breadcrumb a { color: #00d4ff; text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb span { margin: 0 8px; color: #555; }

/* 文件列表 */
.file-list { display: flex; flex-direction: column; gap: 10px; }
.file-item {
    display: flex; align-items: center; gap: 15px; padding: 20px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px; text-decoration: none; color: inherit; transition: all 0.3s;
}
.file-item:hover {
    background: rgba(255,255,255,0.1);
    border-color: #00d4ff; transform: translateX(5px);
}
.file-icon { font-size: 1.5rem; }
.file-name { font-size: 1rem; color: #fff; }

/* ===== 内容页面样式 ===== */
.md-content {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 15px; padding: 40px; line-height: 1.8;
}
.md-content h1 {
    font-size: 2rem; color: #00d4ff;
    border-bottom: 2px solid #00d4ff;
    padding-bottom: 15px; margin-bottom: 30px;
}
.md-content h2 {
    font-size: 1.3rem; color: #fff;
    margin-top: 30px; margin-bottom: 15px;
    padding-left: 10px; border-left: 4px solid #7b2cbf;
}
.md-content h3 {
    font-size: 1.15rem; color: #00d4ff;
    margin-top: 20px; margin-bottom: 10px;
}
.md-content h4 {
    font-size: 1rem; color: #a0a0a0;
    margin-top: 15px; margin-bottom: 8px;
}
.md-content p { margin-bottom: 12px; color: #ccc; }
.md-content ul, .md-content ol {
    margin-left: 25px; margin-bottom: 15px; color: #ccc;
}
.md-content li { margin-bottom: 6px; }
.md-content strong { color: #fff; }
.md-content a { color: #00d4ff; text-decoration: none; }
.md-content a:hover { text-decoration: underline; }
.md-content code {
    background: rgba(0,212,255,0.1); padding: 2px 8px;
    border-radius: 4px; color: #00d4ff; font-size: 0.9rem;
}

/* 表格 */
.md-content table {
    width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 0.9rem;
}
.md-content th {
    background: rgba(0,212,255,0.15); color: #00d4ff;
    padding: 12px; border: 1px solid #333; text-align: left;
}
.md-content td {
    padding: 10px 12px; border: 1px solid #333; color: #ccc;
}
.md-content tr:hover td { background: rgba(255,255,255,0.05); }

/* 提示框 */
.tip-box {
    background: rgba(123,44,191,0.1);
    border: 1px solid rgba(123,44,191,0.3);
    border-radius: 10px; padding: 20px; margin: 20px 0;
}
.tip-title { color: #7b2cbf; font-weight: bold; margin-bottom: 10px; }

/* 里程碑 */
.milestone {
    background: rgba(0,212,255,0.05);
    border-left: 4px solid #00d4ff;
    padding: 15px 20px; margin: 15px 0;
    border-radius: 0 8px 8px 0;
}

/* 页脚 */
.page-footer {
    text-align: center; margin-top: 40px;
    padding: 20px; color: #555; font-size: 0.85rem;
    border-top: 1px solid rgba(255,255,255,0.05);
}